| 1 | /** |
| 2 | * Jexer - Java Text User Interface |
| 3 | * |
| 4 | * Version: $Id$ |
| 5 | * |
| 6 | * Author: Kevin Lamonte, <a href="mailto:kevin.lamonte@gmail.com">kevin.lamonte@gmail.com</a> |
| 7 | * |
| 8 | * License: LGPLv3 or later |
| 9 | * |
| 10 | * Copyright: This module is licensed under the GNU Lesser General |
| 11 | * Public License Version 3. Please see the file "COPYING" in this |
| 12 | * directory for more information about the GNU Lesser General Public |
| 13 | * License Version 3. |
| 14 | * |
| 15 | * Copyright (C) 2015 Kevin Lamonte |
| 16 | * |
| 17 | * This program is free software; you can redistribute it and/or |
| 18 | * modify it under the terms of the GNU Lesser General Public License |
| 19 | * as published by the Free Software Foundation; either version 3 of |
| 20 | * the License, or (at your option) any later version. |
| 21 | * |
| 22 | * This program is distributed in the hope that it will be useful, but |
| 23 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 25 | * General Public License for more details. |
| 26 | * |
| 27 | * You should have received a copy of the GNU Lesser General Public |
| 28 | * License along with this program; if not, see |
| 29 | * http://www.gnu.org/licenses/, or write to the Free Software |
| 30 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 31 | * 02110-1301 USA |
| 32 | */ |
| 33 | package jexer.bits; |
| 34 | |
| 35 | /** |
| 36 | * A text cell color. |
| 37 | */ |
| 38 | public class Color { |
| 39 | |
| 40 | /** |
| 41 | * The color value. Default is WHITE. |
| 42 | */ |
| 43 | public int value = 7; |
| 44 | |
| 45 | /** |
| 46 | * Public constructor |
| 47 | */ |
| 48 | public Color(int value) { |
| 49 | this.value = value; |
| 50 | } |
| 51 | |
| 52 | // The color integer values. NOT EXPOSED. |
| 53 | static private final int black = 0; |
| 54 | static private final int red = 1; |
| 55 | static private final int green = 2; |
| 56 | static private final int yellow = 3; |
| 57 | static private final int blue = 4; |
| 58 | static private final int magenta = 5; |
| 59 | static private final int cyan = 6; |
| 60 | static private final int white = 7; |
| 61 | |
| 62 | /** |
| 63 | * Black. Bold + black = dark grey |
| 64 | */ |
| 65 | static public final Color BLACK = new Color(black); |
| 66 | |
| 67 | /** |
| 68 | * Red |
| 69 | */ |
| 70 | static public final Color RED = new Color(red); |
| 71 | |
| 72 | /** |
| 73 | * Green |
| 74 | */ |
| 75 | static public final Color GREEN = new Color(green); |
| 76 | |
| 77 | /** |
| 78 | * Yellow. Sometimes not-bold yellow is brown. |
| 79 | */ |
| 80 | static public final Color YELLOW = new Color(yellow); |
| 81 | |
| 82 | /** |
| 83 | * Blue |
| 84 | */ |
| 85 | static public final Color BLUE = new Color(blue); |
| 86 | |
| 87 | /** |
| 88 | * Magenta (purple) |
| 89 | */ |
| 90 | static public final Color MAGENTA = new Color(magenta); |
| 91 | |
| 92 | /** |
| 93 | * Cyan (blue-green) |
| 94 | */ |
| 95 | static public final Color CYAN = new Color(cyan); |
| 96 | |
| 97 | /** |
| 98 | * White |
| 99 | */ |
| 100 | static public final Color WHITE = new Color(white); |
| 101 | |
| 102 | /** |
| 103 | * Invert a color in the same way as (CGA/VGA color XOR 0x7). |
| 104 | * |
| 105 | * @param color color to change |
| 106 | * @return the inverted color |
| 107 | */ |
| 108 | static public Color invert(Color color) { |
| 109 | switch (color.value) { |
| 110 | case black: |
| 111 | return Color.WHITE; |
| 112 | case white: |
| 113 | return Color.BLACK; |
| 114 | case red: |
| 115 | return Color.CYAN; |
| 116 | case cyan: |
| 117 | return Color.RED; |
| 118 | case green: |
| 119 | return Color.MAGENTA; |
| 120 | case magenta: |
| 121 | return Color.GREEN; |
| 122 | case blue: |
| 123 | return Color.YELLOW; |
| 124 | case yellow: |
| 125 | return Color.BLUE; |
| 126 | } |
| 127 | throw new IllegalArgumentException("Invalid Color value: " + |
| 128 | color.value); |
| 129 | } |
| 130 | } |